Lighting pattern optimization for a task performed in a vicinity

• US 10,393,355 B2
• Filed: 03/02/2017
• Issued: 08/27/2019
• Est. Priority Date: 03/02/2017
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Ashoori, Maryam, Connell, Jonathan H., Farrell, Robert G., Weisz, Justin D.
• Primary Examiner(s): Gyllstrom, Bryon T
• Application Number:
  US15/447,340
• Publication Number:
  US 20180252396A1
• Time in Patent Office: 908 Days
• Field of Search: 362386
• CPC Class Codes: F21S 2/00 Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
• CPC Class Codes: F21V 21/15 specially adapted for power operation, e.g. by remote control
• CPC Class Codes: F21V 23/0471 the sensor detecting the proximity, the presence or the movement of an object or a person
• CPC Class Codes: H05B 45/00 Circuit arrangements for operating light-emitting diodes [LED]
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 47/11 by determining the brightness or colour temperature of ambient light
• CPC Class Codes: H05B 47/115 by determining the presence or movement of objects or living beings
• CPC Class Codes: H05B 47/125 by using cameras
• CPC Class Codes: H05B 47/19 via wireless transmission
• CPC Class Codes: H05B 47/1965 using handheld communication devices
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

A cognitive illumination system is provided. The cognitive illumination system includes a light source communicatively coupled to a servomechanism, wherein the servomechanism is configured to manipulate the light source in space, a tracking assembly configured to capture and track objects in the space and a processor communicatively coupled to the light source, the servomechanism and the tracking assembly. The processor is configured to receive information about the captured and tracked objects from the tracking assembly, determine a task being undertaken in the space therefrom, develop a lighting plan for the task which is executable by the light source and the servomechanism and control the light source and the servomechanism according to the lighting plan.

Claims

1. A cognitive illumination system comprising:

first, second and third light sources;

a servomechanism configured to manipulate the first, second and third light sources in a space and comprising;

multiple guide bars for multiple axes along each of which a first connector, by which the first light source is connectable to the multiple guide bars, is provided, the first connector being movable and configured to redirect and reorient the first light source with two or more degrees of freedom of movement relative to the multiple guide bars;

a mobile stand with a second connector, by which the second light source is connectable to the mobile stand, the second connector being configured to redirect and reorient the second light source with two or more degrees of freedom of movement relative to the mobile stand; and

a ceiling fixture with a third connector, by which the third light source is connectable with the ceiling fixture, the third connector being configured to redirect and reorient the third light source with two or more degrees of freedom of movement relative to the ceiling fixture;

a tracking assembly configured to capture and track objects in the space; and

a processor communicatively coupled to the first, second and third light sources, the servomechanism and the tracking assembly;

wherein the processor is configured to;

receive information about the captured and tracked objects from the tracking assembly;

determine a task being undertaken in a scene in the space from an analysis of the received information leading to an understanding of the scene by the processor;

develop a lighting plan for the task based on the understanding of the scene, the lighting plan being executable by the first, second and third light sources and the servomechanism; and

control the first, second and third light sources and the servomechanism according to the lighting plan in order to execute the lighting plan.

2. The cognitive illumination system according to claim 1, wherein:

the first, second and third light sources are separate from one another and comprise a light emitting diode (LED), an incandescent or a fluorescent light source,

the multiple guide bars, the mobile stand and the ceiling fixture are separate from one another, and

the tracking assembly comprises at least one of movement and optical sensors.

3. The cognitive illumination system according to claim 1, wherein the information of the captured and tracked objects comprises a gaze direction of a person in the space and an identification of an object in the space.

4. The cognitive illumination system according to claim 1, wherein the processor is further configured to set the first, second and third light sources and the servomechanism in a default position.

5. The cognitive illumination system according to claim 1, wherein the processor is further configured to customize the lighting plan for a user.

6. The cognitive illumination system according to claim 1, wherein the processor is further configured to learn the lighting plan for a user.

7. The cognitive illumination system according to claim 1, wherein the processor is further configured to optimize the lighting plan by minimizing illumination of objects unrelated to the task.

8. The cognitive illumination system according to claim 1, wherein the processor is further configured to identify whether light from the first, second and third light sources is occluded and to control the servomechanism to re-position the first, second and third light sources to a non-occluded position.

9. The cognitive illumination system according to claim 1, wherein the processor is further configured to adjust the lighting plan by anticipating and reacting to object movement in the space.

10. A computer-implemented method of operating a cognitive illumination system, the method comprising:

recognizing, by a processor, a presence of objects in a space;

identifying types of the objects, relationships between the objects, functions of the objects and anticipated trajectories of the objects;

determining a task being undertaken in a scene in the space from an analysis of the identified types of the objects, relationships between the objects, functions of the objects and anticipated trajectories of the objects leading to an understanding of the scene by the processor;

developing an optimal lighting plan by the processor for the objects from the identified types of the objects, relationships between the objects, functions of the objects and trajectories of the objects based on the understanding of the scene by the processor;

moving a first connector that can redirect and reorient a first light source along multiple guide bars for multiple axes wherein the first connector redirects and reorients the first light source with two or more degrees of freedom of movement relative to the multiple guide bars;

moving a second connector of a mobile stand with the second connector being able to redirect and reorient a second light source with two or more degrees of freedom of movement relative to the mobile stand; and

moving a third connector of a ceiling fixture with the third connector being able to redirect and reorient a third light source with two or more degrees of freedom of movement relative to the ceiling fixture,

wherein the moving of the first, second and third connectors is executed in order to effectuate the optimal lighting plan.

11. The computer-implemented according to claim 10, further comprising:

minimizing an effect of light sources that are unrelated to the optimal lighting plan; and

adjusting the optimal lighting plan.

12. A computer program product for providing a cognitive illumination system, the computer program product comprising:

a processing circuit; and

a memory having program instructions stored thereon for enabling the processing circuit to execute a method comprising;

capturing and tracking objects in a space;

determining a task being undertaken in a scene in the space from an analysis of information of the captured and tracked objects leading to an understanding of the scene by the processing circuit;

developing an adjustable lighting plan for the task based on the understanding of the scene, the adjustable lighting plan being executable by first, second and third light sources and a servomechanism to which the first, second and third light sources are coupled and which is configured to manipulate the first, second and third light sources in the space,

the servomechanism comprising;

multiple guide bars for multiple axes along each of which a first connector, by which the first light source is connectable to the multiple guide bars, is provided, the first connector being movable and configured to redirect and reorient the first light source with two or more degrees of freedom of movement relative to the multiple guide bars;

a mobile stand with a second connector, by which the second light source is connectable to the mobile stand, the second connector being configured to redirect and reorient the second light source with two or more degrees of freedom of movement relative to the mobile stand; and

a ceiling fixture with a third connector, by which the third light source is connectable with the ceiling fixture, the third connector being configured to redirect and reorient the third light source with two or more degrees of freedom of movement relative to the ceiling fixture; and

controlling the first, second and third light sources and the servomechanism in accordance with the adjustable lighting plan in order to execute the adjustable lighting plan.

13. The computer program product according to claim 12, wherein:

the first, second and third light sources are separate from one another and comprise a light emitting diode (LED), an incandescent or a fluorescent light source,

the multiple guide bars, the mobile stand and the ceiling fixture are separate from one another, and

a tracking assembly comprising at least one of movement and optical sensors is disposed to capture and track the objects in the space.

14. The computer program product according to claim 12, wherein the information of the captured and tracked objects comprises a gaze direction of a person in the space and an identification of an object in the space.

15. The computer program product according to claim 12, wherein the method further comprises setting the first, second and third light sources and the servomechanism in a default position.

16. The computer program product according to claim 12, wherein the method further comprises customizing the adjustable lighting plan for a user.

17. The computer program product according to claim 12, wherein the method further comprises optimizing the adjustable lighting plan by minimizing illumination of objects unrelated to the task.

18. The computer program product according to claim 12, wherein the method further comprises:

identifying whether light from the first, second and third light sources is occluded; and

controlling the servomechanism to position the first, second and third light sources in a non-occluded position.

19. The computer program product according to claim 12, wherein the method further comprises adjusting the adjustable lighting plan by anticipating and reacting to object movement in the space.